Raymond Sancroft-Baker started his career at Christie’s in 1969 and for twenty years was their numismatist. In 1988 he was appointed head of the London jewellery department, and two years later sold The Agra Diamond, a 32 carat pink gemstone for a world record price. Subsequently he worked in Hong Kong and Los Angeles before spending over two years in Geneva from 1997, as European Jewellery Director. In 2006 he sold the jewellery collection of HRH The Princess Margaret for over £9 million. His book “Hidden Gems – Jewellery stories from the saleroom”, published in 2016 is in its third reprint. He is a Fellow of the Gemmological Association of Great Britain and a jewellery consultant who divides his time between London and Oxfordshire.